Optician s multipliers



P. N. HANSEN.

OPTICIANS MULTIPLIERS.

APPLICATION FILED MAY 26, 1920.

Patented Apr. 11, 1922.

1271591350 1 /2171 N m p PATENT OFFICE,

PHILIP N. HANSEN, OF LOS ANGELES, CALIFORNIA:

OPTICIANS MULTIPLIERS.

Specification of Letters Patent.

Patented Apr. 11, 1922.

Application filed May 26, 1920. Serial No. 384,484.

To all whom it may camera: 7 Be it known that I, PHILIP N. Hansen, acitizen of the United States, residing at Los Angeles, in the county ofLos Angeles and State of California, have invented new and usefulOpticians Multipliers, of which the following is a specification.

An object of this invention is to provide a novel plier by means ofwhich an Optician may perform numerous operations, for which, in theartas heretofore existing, it was necessary to employ anumber of dissimilarpliers; thus requiring the artisan to change from one plier to anotherin the operation of conforming the spectacle bridges,

frames, studsand straps to a required position and in making the bendsnecessary to the 'purposeof. proper adjustment of frames and le nses.

"An object is to provide pliers by which an Optician may make'variousbends as above suggested without the use of any other pliers. Y

. An objectof this invention is to provide a plier for-the use ofOpticians in cases wherefduring the operation of making va- .riousbends, the material on which the plier [is used, has heretofore beenlikely to escape the grip of the instrument, thus causing breakage-oflenses. An object is to provide a superior bridge rolling plier in theuse of which the material being bent cannot slip through the jaws of theplier. An object is to prevent I the usual: loss from breakage which iscaused by using pliers heretofore known for making such bends. That isto say, heretofore an opticians bench required numerous pliers each ofwhich was required for some specific use, and in the general practice ofskilled workmen with such pliers it has frequently occurred not onlythat lenses were broken due to insecure hold on a bridge, causing a lensto snap when the the pliers may also break the shell of gold that coversthe base metal, thus allowing corrosion and possible injury to thewearer. The breaking of such shell makes it neces .sary to replace thebridge with a new one.

-fI have discovered that these difiiculties may be overcome by means,which as will hereinafter be more clearly shown, is com prised in asingle simple pair of pliers; and the invention herein set forth isbroadly new, basic and pioneer in that it comprises pliers havingelongate taper jaws, the tip of one of which jaws extends beyond the tipof the other jaw and is bent to form a detent adapted to extend in frontof the tip of the other tapering jaw when the pliers are closed upon aspectacle bridge, or end piece when al-inement of temples is necessary,and. close enough to such tip of the other'jaw to intercept the partthus held and to prevent slippage of the tool from. such part.

A further feature of the invention conslsts in constructing jaws of thecharacter just set forth, with an open space between the bent tip andthe end. of the other tip when the pliers are closed upon a strap, so asto. .accommodate the. shoulder of the strap and allow the pliers to beused in widening the'strjap when the pliers are held in oneposition; andif the pliers are reversed, it mayalso .be used to narrow. the width ofstrap in the same manner as is common with bending and shaping pliersheretofore known.

This invention relates to the specific construction of the jaws of thepliers.

Other objects, advantages and features of invention may appear from theaccompanying drawing, the subjoined detail description and the appendedclaims.

The accompanying drawing illustrates the invention.

Figure l is a fragmental side elevation of the pliers closed.

Fig. 2 is a section on line m, Fig. 1, looking down.

. Fig. 3 is a transverse section on line w'"'m, Fig. 1 looking down.

Fig. 4 is a transverse section on line mw Fig. 1, looking up, the jawsbeing slightly open.

Fig. 8 is a view of the pliers holding the post of a stud.

Fig. 9 is a view from the right of Fig. 8, the post being sectioned online 5/)".- Fig 8.

Fig. 10 is a view illustrating the use of the pliers for widening astrap.

Fig. 11 is a view of the pliers in narrowing a strap.

Fig. 12 is on the scale of Fig. 10, showing the inner or opposed facesof the two jaws; said. jaws being detached from each other and placedside by side for comparison.

The pliers are constructed with the usual handles 1, 2 crossing eachother at the usual pivot 3 and terminating respectively in taper-likejaws 4, 5; said jaws being reduced from heel to tip. The jaw & is of ageneral conical form being substantially circular in cross section fromheel G to tip 7. The jaw 5 is semi conical and has a flat inner face 8opposed to the convexity of the concial jaw use for 4;. Said jaw 5 is ofgreater length than aw 4 and the fiat face 8 extends from the heel 9 toa detent lip or hook 10 which is made by bending over the tip of thelonger jaw 5;

said hook or detent being adjacent to but spaced apart from the tip 7 ofthe'conical jaw to form a narrow recess 11 between the tip and thedetent when the jaws are fully closed as indicated in Fig. I;

The jaw 4 is externally reducednear its tip as at 12 and the aw islikewisereduced at 13, thus fitting the instrument for insertion intothe narrow limits of the spaces into which the tips must enter .inbending the strap and handling other parts of the spectacle mounting. V

The face 8 and detent 10 combine to form an angle that is approximatelya right angle inside corner 14 slightly spaced from the tip 7 whichterminates in a flat face 7 opposed to the inner face of the detent 10.

It is thus seen that in grasping any part of the spectacle mounting. oneside of the part grasped may be held by one or more flat surfaces; andthat in grasping a part which is wider than the recess 11, it is impossible for the pliers to slip from the part thus grasped;- and yet thelikelihood of marring'the part grasped is minimized.

In rolling a bridge as indicated in Fig. 6 the round conical jaw t isadapted to give appropriate form to the bridge without abrading ormarring the same, and there is no possibility of slippage.

In grasping the post as indicated in Figs. 8 and 9, tip 7 forces thepost into the angle let as indicated in Fig. f), thus giving'a perfectgrasp upon the post without inarring the same.

hen it is desired to widen the strap, the flat faced jaw 5 with itsdetent 10 is placed on the outside, and the conical 4 on the inside ofthe strap in such position that when the pliers are closed on the strap,a

shoulder of the strap will be formed closer to the post; the tip 7cooperating with the inside corner 14 to this effect.

When it is desired to narrow the strap, the flat faced jaw 5 and itsdetent 10 are placed inside the recess of the strap and the conical jawl on the outside thereof; then by closing the pliers, the strap is bentinwardly by the tip 7.

As clearly shown in Fig. l the opposing faces 8 and 15 are spaced apartwhen the tips of the jaws are engaged with each other, thus leaving aclearance between the jaws. The Hat face 8 is slightly bowed from heelto tip so that the portion of the face adjacent the book 10 may be inpractical parallelism with the opposing portion of the conical when thepliers are closed upon astrap as indicated in Fig. 9.

I claim:

l. A pair of bridge-rolling pliers having one of its jaws coneshaped andthe other provided with a flatinner face extending from heel totip; saidflat faced jaw being provided with a lip at itsen d to secure its holdduring the operation of making various bends and adjustments. 1

2. A pair of .pli'ers'havingione ofits jaws in the form of a cone andthe other a longer semi-conical jaw, formed with a flat inner face, saidlonger jaw being bent over the end or point of the conicalj aw toprovide'a lip or hook which will prevent slippingof the article held. I3. Apair'of bridge-rolling or'stu'd pliers having a conical jaw and asemi-conicalflat inner faced .jaw'terminating in a hook or lip,th'erebeing a space between said lip and the tip ofthe cone, and saidjaws being externally reduced near their tips forthe pur-' posespecified.

Opticians pliers comprising two taper jaws reduced from heel toward thetip, one of said jaws being conical and the other of said jaws beingsemi-conical and having a substantially flat inner face opposed to theround inner face of the conical jaw; said substantially flat faced jawterminating in a hook extending in front of the tip of the conical jaw;and said jaws being spaced apart whenthe tips of the jaws are engagedwith each other so as to leave a clearance therebetween.

5. Opticians pliers having a j aw' circular in cross section and a jawhaving a flat face opposed to the round face of the other jaw; tl eflatfaced jaw having a hook at its tip in front of the tip of the roundjaw; and said fiat faced jaw being slightly bowed from heel to tip onits inner surface so that the portion of the jaw adjacent the hook maybe in practical parallelism with the opposing portion of the circularjaw.

6. A. pair of pliers having one'of' its jaws in the form of a cone andthe other being semi-conical and having a fiat face opposed to theconvexity of the conical jaw; said semi-conical jaw being bent so as toform a lip 01- hook which extends at rightangles to said flat face andis adjacent to but spaced apart from the tip of the conical jaw; saidjaws being externally reduced near their tips; and said aws being spacedapart when the tips of the jaws are engaged with each other so as toleave a clearance therebetween. 10

In testimony whereof. I have hereunto set my hand at Los Angeles,California, this 21st day of Way, 1920.

PHILIP N. HANSEN. Witness:

JAMES R. TOWNSEND.

